"""Contains commands and views for request commands."""

import nextcord
from nextcord.ext import commands
from sqlalchemy.orm import Session

from dakiny_bot.DakinySettings import settings
from dakiny_bot.database.sql_data_classes import Presences, engine


class RequestCog(commands.Cog, name="Request Commands"):
    """Class holds request commands."""

    def __init__(self, bot: commands.Bot) -> None:
        """Default constructor for RequestCog class. Does nothing."""
        self.bot: commands.Bot = bot

    @nextcord.slash_command()
    async def request(self, interaction: nextcord.Interaction) -> None:
        """Parent slash command for request. Never called."""

    @request.subcommand(description="Request to add a presence to the bot's presence list.")
    async def add_presence(
        self,
        interaction: nextcord.Interaction,
        presence: str = nextcord.SlashOption(
            required=True,
            min_length=1,
            max_length=100,
            description="The presence you want to add.",
        ),
    ) -> None:
        """
        Sends a message to admins to request to add a presence.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command.
            presence (str): The presence to add.
        """
        content = f'<@{interaction.user.id}> would like to add presence "{presence}."'
        view = PresenceChange(presence)
        await self.bot.get_channel(settings.channel_ids.admin).send(content=content, view=view)
        await interaction.response.send_message("Request sent to admins.", ephemeral=True)

    @request.subcommand(description="Request to change your Dakiny nickname")
    async def change_nickname(
        self,
        interaction: nextcord.Interaction,
        new_nickname: str = nextcord.SlashOption(
            required=True,
            min_length=2,
            max_length=32,
            description="Your requested new nickname.",
        ),
    ) -> None:
        """
        Sends a message to admins to request a nickname change.

        Args:
            interaction (nextcord.Interaction): Interaction that invoked the command.
            new_nickname(str): The username to change to.
        """
        content = f'<@{interaction.user.id}> would like to change their username to "{new_nickname}."'
        view = UsernameRequest(interaction.user.id, new_nickname)
        await self.bot.get_channel(settings.channel_ids.admin).send(content=content, view=view)
        await interaction.response.send_message("Request sent to admins.", ephemeral=True)


class UsernameRequest(nextcord.ui.View):
    """View provides approve and deny buttons and action for a username change request."""

    def __init__(
        self,
        user_id: int,
        new_nickname: str,
    ):
        super().__init__(timeout=None, auto_defer=True)
        self.user_id = user_id
        self.new_nickname = new_nickname

    @nextcord.ui.button(label="Approve", style=nextcord.ButtonStyle.green)
    async def approve(self, button: nextcord.ui.Button, interaction: nextcord.Interaction) -> None:  # noqa: ARG002
        """
        Approve button for a nickname change request.

        Changes the target's nickname to self.new_nickname.
        Catches an error if the target as a higher role than the bot.
        Removes the view from the interaction message.

        Args:
            button (nextcord.ui.Button): Unused.
            interaction (nextcord.Interaction): The interaction of the user clicking the button.
        """
        user = interaction.guild.get_member(self.user_id)
        if user is not None:
            try:
                await user.edit(nick=self.new_nickname)
                content = interaction.message.content + f"\nApproved by <@{interaction.user.id}>."
                await interaction.response.edit_message(content=content, view=None)
            except nextcord.errors.Forbidden:
                await interaction.response.send_message(
                    content="Please change manually.",
                    ephemeral=True,
                )
                content = (
                    interaction.message.content
                    + "\n\nFailed. User has too high permissions for bot to change nickname."
                )
                await interaction.followup.edit_message(interaction.message.id, content=content, view=None)
        else:
            await interaction.response.edit_message(
                content="An error occurred while changing the user's nickname.",
                view=None,
            )

    @nextcord.ui.button(label="Deny", style=nextcord.ButtonStyle.red)
    async def deny(self, button: nextcord.ui.Button, interaction: nextcord.Interaction) -> None:  # noqa: ARG002
        """
        Deny button for a nickname request. Just removes the view and logs who denied the request.

        Args:
            button (nextcord.ui.Button): Unused.
            interaction (nextcord.Interaction): The interaction of the user clicking the button.
        """
        content = interaction.message.content + f"\nDenied by <@{interaction.user.id}>."
        await interaction.response.edit_message(content=content, view=None)


class PresenceChange(nextcord.ui.View):
    """View provides approve and deny buttons and action for a username change request."""

    def __init__(
        self,
        presence: str,
    ):
        super().__init__(timeout=None, auto_defer=True)
        self.presence = presence

    @nextcord.ui.button(label="Approve", style=nextcord.ButtonStyle.green)
    async def approve(self, button: nextcord.ui.Button, interaction: nextcord.Interaction) -> None:  # noqa: ARG002
        """
        Approve button for a presence add request.

        Adds the presence to the database.
        Removes the view from the interaction message.

        Args:
            button (nextcord.ui.Button): Unused.
            interaction (nextcord.Interaction): The interaction of the user clicking the button.
        """
        with Session(engine) as session:
            session.add(Presences(Presence=self.presence))
            session.commit()

        content = interaction.message.content + f"\nApproved by <@{interaction.user.id}>."
        await interaction.response.edit_message(content=content, view=None)

    @nextcord.ui.button(label="Deny", style=nextcord.ButtonStyle.red)
    async def deny(self, button: nextcord.ui.Button, interaction: nextcord.Interaction) -> None:  # noqa: ARG002
        """
        Deny button for a presence add request. Just removes the view and logs who denied the request.

        Args:
            button (nextcord.ui.Button): Unused.
            interaction (nextcord.Interaction): The interaction of the user clicking the button.
        """
        content = interaction.message.content + f"\nDenied by <@{interaction.user.id}>."
        await interaction.response.edit_message(content=content, view=None)